Raymond carlson



R. CARLSON.

LOCK.

APPLICATION FILED NOV. 14, 1919.

1,372,481 Patented Mar. 22,1921.

N II I'II I IETIIE T MIImmnfluw 4/L Z a UNITED STATES RAYMOND OABLSON, OF MOUNT JEWETT, PENNSYLVANIA.

LOCK.

Specification of Letters Patent. Patent-ed M 22 1921 Application filed November 14, 1919. Serial No. 338,137.

To all whom it may concern:

Be it known that I, RAYMOND CARnsoN, a citizen of the United States, residing at Mount J ewett, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Locks, of which the following is a specificatlon, reference being bad therein to the accompanyin draw' [his invention relates to improvements in looks, and its primary object is to provide a lock having a construction which s operative as both a latch and a lock, acting as a latch to hold the door closed under ordinary and. usual use and additionally capable of fulfilling all the functions of a bolt lock.

Another object of this invention is to pro vide a bolt lock and latch which is simple and cheap of construction easily operated and in which the bolt will be positively held from reverse action or movement when 1n its locked position.

In the accompanying drawmgs:

Figure 1 is a side view of the lock and lock housing, with the housing cover removed.

Fi 2 is a sectional view on the line 2-2 of Fig. 1, looking in the direction indicated by arrow.

Fi 3 is a sectional view on the line 3-3 of Fig. 1, looking in the direction mdicated by arrow.

Fig. 4 is a perspective new of the lock Tieferring now to the drawin s in which similar parts are designated by ike numerals, 1 is a suitable housin havinga removable cover 2, which is held 1n place in an desired manner, such as the screws 3, an 1ntended to be carried by a door, gate or the like. This housing an be made of any desired material and in any shape, as here shown the housing is made of metal and in a rectangular shape.

The end wall 4 of the housing is provided with an opening 5, through which the lock bolt 6 extends or engagement with a door casing socket (not shown) or the like. Th1s bolt 6 has its outer end tapered, as at 7, and its inner end bent downwardly as at 8, so as to support it longitudinally in alinement with the opening 5. A U-shaped member 9, held in lace by bolts 10, supports the inner end of time bolts laterally in alinement with the opening 5.

To reciprocate the bolt 4 inwardly and outwardly, l have provided the lower edge of the bolt with teeth 11, which e age a gear wheel 12. The gear wheel 12 is supported within the housing 1 and in engagement with the bolt by the shaft 13, which extends outwardly beyond either side of the housing, as at 14, and is intended to have door knobs (not shown) mounted on its ends.

It will be readily seen that when the shaft 13 is rotated, by means of the door knobs referred to, the gear wheel 12 will operate to move the bolt outwardly or inwardly as desired. The normal position of the bolt is in extended position, as shown in Figs. 1 and 2, this being due to the spring 15 which passes outwardly against the inner end of the bolt. The spring 15 can be mounted in any desired manner, the manner here shown is to have one end held by a stub shaft 16 and its other end in engagement with a stop 17, the spring being bowed across the shaft and stop, as clearly shown in the drawings.

The onstruction as thus far described will act as a door latch. As the door is closed the tapered end 6 of the bolt will strike the edge of the socket on the door frame and push inwardly against the tension of the sprin 15, and when the door is completely close the spring will force the bolt outwardly into the socket, as is usual in latches of this character. To relieve the latch, the shaft 13 is rotated by the turning of the door knob and the bolt thus drawn inward.

To enable the bolt to be locked against inward movement, when it is in the position shown in Figs. 1 and 2, I have provided the upper edge of the bolt with teeth 18, which engage the teeth 19 of the gear wheel 20. Thi gear is mounted upon the shaft 21, which extends through the housing 1.

As shown in Fig. 1, the teeth 18 of the bolt and the teeth 19 of the gear 20 are just sufficient '11 number to permit the end 6 of the bolt to be pulled inwardly to a position inside the wall 4 of the housing and to permit the bolt to assume an extended position sufficient to engage securely a socket for latch- The gear wheel 20 is provided with a stop 22, which engages the top edge 23 of the bolt when the bolt is in extended position.

In a osition above the bolt and to the rear of t e gear' wheel 20 is a shaft 24, which is mounted transverse the main housing 1 and rcvoluble therein. This shaft is provided with a solid inner end 2 1 anda hollow outer end 24", the outer end being closed by a plate 25. The plate 25 is provided with a 'key opening 25* into which is inserted the key 26, provided with a pronged end 27 for engagement with the openings 28 in the solid end of the shaft.

A pin 29 is carried by the shaft 24, and extends outwardly therefrom, engaging the slot 30, in the end of the dog 31.

The dog 31 is pivotally mounted on the rod 32, and has a tapered lower end 33,

Y position.

It will be readily understood that when a door carrying my lock is'closed, the bolt at is in spring tension engagement with the door socket and that when the key is inserted in the shaft 24 and rotated, the pin 29 engages the seat 34 in the dog'3l and holds the lower end 33 thereof in engagement with the-stop 32 of thegear wheel 20. The

bolt 4 cannot be pulled inwardly when the parts are in this position (Fig. 1) as'the gear wheel 20 cannot rotate because of its engagement with the end 33 of the dog.

While I have'illustrated and described my invention in what I believe to be the desired form, it will be readily understood that many changes might be made therein with out departing from the spirit of the invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is z- 1. In a lock of the character described, a housing, a bolt slidable within the housing, the bolt provided with teeth on its upper and lower edges, a gear meshing with one of said sets of teeth for operating the bolt, a gear meshing with the other set of teeth and driven thereby when the bolt is reciprocated, and means normally operated for locking said driven gear.

2. In alock of the character described, a

housing,-a spring pressed bolt slidable within the housing, two sets of teeth-carried by the bolt, a gearmeshing with one set of said teeth for operating the bolt, agearmeshing with the other-set of teeth and driven thereby when the bolt is reciprocated, and means for locking said driven gear.

3. In a lock ofthe'character described, a

housing, a spring pressed boltslidable withi in the housing, two sets of teeth carriedby the bolt, a-gear meshing with one set of said teeth for operating thebolt, agear meshing with-the otherset of teeth and driven-'there- In testimony whereof, I hereunto ailixmy signature.

RAYMOND CARLSON. 

